[mythtv-users] Oddly VDPAU makes things WORSE

Michael T. Dean mtdean at thirdcontact.com
Thu Dec 10 02:07:51 UTC 2009

On 12/09/2009 08:47 PM, Ken Johnson wrote:
> I recently sent a post concerning my transcoded 720p videos tearing when
> played in Mythtv. I am using Mythbuntu 9.10 p5n7a-vm mobo 9300
> integrated grphics by the way. I saw replies saying that I needed to
> edit my xorg.conf file and I did so but nothing worked the tearing was
> still there. It wasn't until recently when I tried playing a transcoded
> 1080p movie that I knew the issue was bigger then I thought so I ended
> up scrolling through my playback profiles one by one trying to find
> where the issue was and sure enough it was VDPAU when it was enabled
> certain movies would tear BUT when I set my decoder to Standard with
> xv-blit and softblend osd with Yadif deinterlacers IT WAS PERFECT. Sure
> my cpu is now at 66% on average but its nothing the Quad can't handle.
> Just wondering if this is a bug or my bad configuration.

I'd guess it's the SyncToVBlank, XVideoTextureSyncToVBlank, 
XVideoBlitterSyncToVBlank, and/or XVideoSyncToDisplay settings in 
nvidia-settings and/or Composite settings in X configuration.


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